CN106513947A - Method for doping trace boron element into weld metal and welding method - Google Patents
Method for doping trace boron element into weld metal and welding method Download PDFInfo
- Publication number
- CN106513947A CN106513947A CN201510583175.4A CN201510583175A CN106513947A CN 106513947 A CN106513947 A CN 106513947A CN 201510583175 A CN201510583175 A CN 201510583175A CN 106513947 A CN106513947 A CN 106513947A
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- China
- Prior art keywords
- welding
- boride
- weld metal
- flux
- welding material
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
- C23C8/68—Boronising
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Arc Welding In General (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention relates to a method for doping the trace boron element into weld metal and a welding method. The method for doping the trace boron element into the weld metal includes the step that the boride is added into a welding material, and the mass ratio of the boride to the welding material is 0.1-2:100. When the boride-containing welding material is used for welding, elemental boron can be decomposed in the welding arc space from the boride, and the elemental boron is doped into the weld metal. The welding material is a manual electrode coating or the flux-core of a flux-cored wire and submerged-arc welding flux.
Description
Technical field
The present invention relates to a kind of Welding Metallurgy alloying method, particularly with regard to by electrode coating, medicine
Core welding wire medicine core and submerged arc welding flux ooze the metallurgical method of micro boron element to weld metal.
Background technology
Microalloy treatment is carried out to low-carbon low-alloy steel weld metal using titanium (Ti) and boron (B), can be with
Weld metal is made to obtain very high toughness.Therefore, Ti-B process is the important of current toughening steel weld metal
Metallurgical Means.At present, in welding material application, generally directly oozed to weld metal using ferro-boron
The method of micro B.Ferro-boron is added to close in the medicine core of coating, flux-cored wire i.e. in welding rod and submerged arc welding flux
Gold, in welding process, due to the fusing of coating, medicine core or solder flux, causes ferro-boron fusing therein, by
This oozes micro boron to weld metal.And in Surface thermo-chemical treatment field, reach often through boronising hard
The purpose of chemical industry part.With the progress of boronizing technology, occur in that boride as the ion boriding of active gases
Research.And in welding material application, there is not yet the report of boronising is carried out using boride.
The content of the invention
It is an object of the invention to propose a kind of method for oozing micro boron element to weld metal, welded with toughening steel
Seam metal.
Boronation is introduced in coating, medicine core and solder flux in welding material welding rod, flux-cored wire and submerged-arc welding
Thing, by boride in the decomposition of arc space, reaches and for micro boron element to penetrate into weld metal.
According to considerations above, the present invention provides a kind of method for oozing micro boron element to weld metal, including：
Selection can decomposite the boride of pure boron under high arc temperature, and boride is added to the weldering of welding material
In the welding materials such as bar coating, the medicine core of flux-cored wire and submerged arc welding flux, boride and coating, medicine core and weldering
The mass ratio of agent is 0.1-2：100 is (concrete optional：1：100, or 1：22, or 1：25, or 1：50,
Or 1：250, or 1：525, or 1：725, or 1：950)；The welding material is stick electrode medicine
Skin, flux for flux-cored wire and submerged arc welding flux.When being welded using the above-mentioned welding material containing boride, boron
Compound goes out pure boron in welding arc spatial decomposition, and pure boron penetrates into weld metal, and welding current is more than 171A.
A kind of welding method, which includes：Boride is added in welding material, boride and welding material
Mass ratio be 0.5-1：100 is (concrete optional：1：100, or 1：22, or 1：25, or 1：50,
Or 1：250, or 1：525, or 1：725, or 1：950)；The welding material is stick electrode medicine
Skin or flux for flux-cored wire.When being welded using the above-mentioned welding material containing boride, boride is in weldering
Connect arc space and decomposite pure boron, pure boron is penetrated into weld metal, and welding current is more than 171A.
The mass ratio of the stick electrode that a kind of trace B is processed, the boride in the coating of stick electrode and coating
For 0.1-2：100 is (concrete optional：1：100, or 1：22, or 1：25, or 1：50, or 1：250,
Or 1：525, or 1：725, or 1：950).
The mass ratio of the flux-cored wire that a kind of trace B is processed, the boride in the medicine core of flux-cored wire and medicine core
For 0.1-2：100 is (concrete optional：1：100, or 1：22, or 1：25, or 1：50, or 1：250,
Or 1：525, or 1：725, or 1：950).
The submerged arc flux that a kind of trace B is processed, the boride in solder flux are 0.1-2 with the mass ratio of solder flux：
100 is (concrete optional：1：100, or 1：22, or 1：25, or 1：50, or 1：250, or 1：525,
Or 1：725, or 1：950).
The method that another kind oozes micro boron element to weld metal, including：Boride is added in welding material,
Boride is 0.1-2 with the mass ratio of welding material：100；The welding material is solder flux used for submerged arc welding；Adopt
When being welded with the welding material of above-mentioned boracic compound, boride goes out pure boron in welding arc spatial decomposition,
Pure boron penetrates into weld metal, and welding current is more than 311A.
A kind of Welding Metallurgy alloying method of the present invention, has the positive effect that：(1) side of the invention
Method, technological operation are simple, proper market demand；(2) method of the present invention is used, can be made after micro boronising
The toughness of deposited metal is improved, and so as to improve welded service safety, (3) China is welding material
Big country, the present invention propose a kind of new Welding Metallurgy method to improve the toughness levels of welding material, to me
The development of state's welding material industry will play active promoting function.
Specific embodiment
Embodiment 1：
Metallurgical method of the invention, is carried out in the supporting stick electrode design of 12MnCrNi steel.Root
According to the technical requirements (being shown in Table 1) of the supporting stick electrode of 12MnCrNi steel, three batches of coating boracics are designed and make
The supporting stick electrode of 12MnCrNi steel (the boron that will be appropriate of sand (sodium tetraborate, Na2B4O7 10H2O)
Sand is added in active compound skin mixture), steel core that the three batches of welding rods are adopted and the composition of coating powder are respectively such as
Shown in table 2,3.The mother metal of three batches of welding rod institutes welding and welding process parameter are as shown in table 4.To institute after welding
The deposited metal for obtaining has carried out Mechanics Performance Testing, and test result is as shown in table 5.As a comparison, use active compound
The test data of 12MnCrNi steel supporting stick electrode of the skin without boride is shown in Table 6.
The technical requirements of the supporting stick electrode of 1 embodiment 12MnCrNi steel of table
Deposited metal mechanical property
The supporting stick electrode steel core composition of 2 embodiment 12MnCrNi steel of table (weight, %) (specification 4mm)
The supporting stick electrode compositions of surfacing metal of 3 embodiment 12MnCrNi steel of table (weight, %)
Using potassium sodium mixing water glassy bond, coating external diameter 6.0mm.
The mother metal of 4 embodiment of table, three batches of welding rod institutes welding and welding process parameter
5 embodiment of table, three batches of welding rod deposited metal compositions and mechanical property
The deposited metal composition of 12MnCrNi steel supporting stick electrode of 6 coating of table without boride and power
Learn performance
It can be seen that, 12MnCrNi steel supporting stick electrode of the coating without boride is compared, containing boride
- 40 DEG C of V notch impact toughness of deposited metal of the supporting stick electrode of 12MnCrNi steel are greatly improved.
Embodiment 2：
Metallurgical method of the invention, is carried out in the Curve guide impeller of 350 solder flux.Design and make
Make three batches of solder flux and contain B2O3350G solder flux, solder flux preparation method is with former 350 solder flux.The composition of three batches of solder flux
It is as shown in table 7 respectively.The matched somebody with somebody welding wire of the three batches of solder flux is 12MnCrNi (specification 4mm), the mother metal of institute's welding
And welding process parameter is as shown in table 8.Mechanics Performance Testing has been carried out to the deposited metal of gained after welding,
Test result is as shown in table 9.
7 embodiment 350G flux constituent of table (weight, %)
The mother metal of 8 embodiment of table, three batches of solder flux 350G institutes welding and welding process parameter
9 embodiment deposited metal composition of table and mechanical property
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to this
The restriction of the embodiment of invention.For those of ordinary skill in the field, as long as selecting in electric arc
The boride that high temperature can be decomposed, can also make other multi-forms on the basis of the above description
Change changes.There is no need to be exhaustive to all of embodiment.And these belong to the present invention
Spirit it is extended obvious change or change still in protection scope of the present invention among.
Claims (1)
1. a kind of method for oozing micro boron element to weld metal, it is characterised in that include：Boride is added in welding material, boride is 0.1-2 with the mass ratio of welding material：100；The welding material is solder flux used for submerged arc welding；
When being welded using the above-mentioned welding material containing boride, boride goes out pure boron in welding arc spatial decomposition, and pure boron penetrates into weld metal, and welding current is more than 311A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583175.4A CN106513947A (en) | 2015-09-14 | 2015-09-14 | Method for doping trace boron element into weld metal and welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510583175.4A CN106513947A (en) | 2015-09-14 | 2015-09-14 | Method for doping trace boron element into weld metal and welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106513947A true CN106513947A (en) | 2017-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510583175.4A Pending CN106513947A (en) | 2015-09-14 | 2015-09-14 | Method for doping trace boron element into weld metal and welding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106513947A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404799A (en) * | 2020-11-04 | 2021-02-26 | 江苏科技大学 | Sintered flux for babbitt metal submerged arc brazing and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000239816A (en) * | 1999-02-15 | 2000-09-05 | Nippon Steel Corp | Plating tank |
| CN100999043A (en) * | 2007-01-05 | 2007-07-18 | 西安理工大学 | Submerged arc welding flux material used for high grade pipe line steel |
| CN101549445A (en) * | 2009-05-08 | 2009-10-07 | 西安理工大学 | Submerged arc welding flux material for X80 pipeline steel and preparing method thereof |
| CN103962751A (en) * | 2014-05-21 | 2014-08-06 | 锦州公略焊接技术有限公司 | Sintered flux for efficient submerged arc welding and production technology thereof |
-
2015
- 2015-09-14 CN CN201510583175.4A patent/CN106513947A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000239816A (en) * | 1999-02-15 | 2000-09-05 | Nippon Steel Corp | Plating tank |
| CN100999043A (en) * | 2007-01-05 | 2007-07-18 | 西安理工大学 | Submerged arc welding flux material used for high grade pipe line steel |
| CN101549445A (en) * | 2009-05-08 | 2009-10-07 | 西安理工大学 | Submerged arc welding flux material for X80 pipeline steel and preparing method thereof |
| CN103962751A (en) * | 2014-05-21 | 2014-08-06 | 锦州公略焊接技术有限公司 | Sintered flux for efficient submerged arc welding and production technology thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404799A (en) * | 2020-11-04 | 2021-02-26 | 江苏科技大学 | Sintered flux for babbitt metal submerged arc brazing and preparation method thereof |
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| PB01 | Publication | ||
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Application publication date: 20170322 |